Grain-drier



(No Model.)

D. E. SIBLEY GRAIN DRIRR. No. 323,221. Patented July 28, 1885.

Illlmmummi wd l' Q 77% 7 J WL/M UNITED STATES PATENT QFFICEQ DENNIS E. SIBLEY, OF CHICAGO, ILLINOIS.

GRAIN- DRIER.

SPECIFICATION forming part of Letters Patent No. 323,221, dated July 28, 1885.

Application filed January 5, 1885.

Chicago, in the county of Cook and State of Illinois, have invented certainImprovements in Grain-Drying Apparatus, of which the following is a specification.

My invention relates to an apparatus for drying grain by means ofheated air, and will be hereinafter fully described, with reference to the accompanying drawings, in which- Figure 1 represents a side elevation of a bin or hopper and a spout leading therefrom into a conveyer, and also a cross-sectional view of a furnace, and an end view of a boiler in position in the same, with a coil of pipe occupying the space below the boiler and behind the bridge-wall; Fig. 2, an enlarged longitudinal sectional View of a grain-conveyer, and Fig. 3 a cross-section of the same.

In the drawings, A indicates the bin or receptacle for the grain; B, the spout to lead the same into the conveyer O, and D the pipe to lead the heated air into the end of the c0nveyer; M, the bridge-wall, and I the outer end of the coil of pipe extending beyond the furnace for the reception of the air.

S indicates the shaft of the conveyer, having suitable bearings in the ends of the shell 0; K, certain sections of the flight, the effective portions of which are made of wire-cloth of suitable size of mesh for the heated air to pass through and leave the grain behind, and the wire-cloth is held in position and shape by solid frames of metal of sufficient strength. In these sections perforated sheet metal may be used instead of the wire-cloth, but the latter is to be preferred.

K indicates other sections which are made of solid or imperforated sheets of metal, frames and all.

The shaft S is a hollow tube, which is made in that form in order to secure sufficient stiffness and strength with the use of as little weight and metal as practicable.

The sections K and K are attached to the shaft in any suitable manner, and the general arrangement of the two kinds of sections upon the shaft is preferably that shown in Fig. .2--namely, several sections made of wire- (No model.)

cloth are fastened upon the end of the shaft at which the grain enters by the spout B, and the hot air by the pipe D, without the interposition of any of the solid sheetmetal ones between them, and along the rest of the length of the shaft the two kinds, K and K, are fastened alternately, first one kind and then the other; but this arrangement may be modified to some extent. If they were all solid, the heated air would not pass through the conveyer quickly enough; but, on the other hand, if they were all of wire-cloth, the air would pass through it too quickly.

In order to secure a thorough agitation of the grain and scatter it during the passage of the same through the conveyer, buckets L are fastened upon the solid sections K, and they, as the conveyer revolves, scoop up the grain and then throw it out again and scatter it, as required.

The coil of pipe H occupies the space behind the bridge-wall, which is likewise filled with the air heated by the combustion of the fuel used in the furnace, by the hot walls, and by the boiler itself; and my object is to utilize as much of the heat from all these sources named as practicable.

The supply of heated air through the pipe D to the conveyer may be regulated by means of the cock G, while the temperature of the heated air itself may be regulated by admitting cold-air from without by means of the cock F.

A thermometer, T, placed on pipe D, will always indicate the temperature of the heated air.

For the purpose of increasing the draft within the conveyer, any suitable fan-blower, E, may be connected to the hot-air pipe D.

The sections K and K of the flight hereinbefore described are usually made just long enough for each to wind spirally once around the shaft.

WVhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The conveyer consisting of the shell 0, the shaft S, and the described flight composed in part of sections made of imperforated sheet metal, and partly of other sections having their bodies made of wire-cloth attached 3. The described conveycr with a flight in to their frames, which are fastened to the main sections, and one or more of the sections pro- 10 shaft, substantially as described. vided with buckets L, substantially as de- 2. The flight-section K, the effective or scribed. 5 main portion of which is made of wire-cloth, DENNIS E. SIBLEY.

which is surrounded and held by a frame or Witnesses: sieve which is fastened to the main shaft sub- R. B. MrroHELL,

stantially as described. WV. A. WVEED. 

